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PRELAB
Worksheet
PRELAB
Labeling
Fetal Pigs
Fetal Pigs
unborn pigs
How is age determined?
How long does full gestation take?
Domain
Kingdom
Phylum
Class
Origin
Family
Genus
Species
How many piglets does a sow have in a litter?
Is a pig biped, or quadruped?
Rostral
Anterior
caudal
dorsal
ventral
lateral
medical
proximal
distal
measuring length of fetal pig
17 weeks
eukary
animalia
chordata
mammalia
artiodactyla
..
suidae
sus
domestica
8-12
quadruped, has 4 legs
pertains to head, towards the snout
forward
DAY #1
pertains to the tail, towards the tail
toward the backbone
toward the belly
toward the side
toward the midline
near the reference point
far from the reference point
cranial
cranial
head area
cervical
thoracic
abdominal
lower trunk
tail area
How to determine sex of pig?
neck area
upper trunk
middle trunk
lumbar
caudal
male has a urogenital opening, penis and anus. female has uroginital papilla, anus
DAY #2
Is pig digitigrade, unguligrade, or plantigrade?
Are pigs omnivores, herbivores, or carnivores?
nares
pinnae
Why is the fetal pig a good specimen to dissect?
epitrichium
hair
unguligrade, walks on tips of its toes
omnivores, eats everything
another name for nostrils
long external fold of the ear
it has similar anatomy of humans
tissue that makes up skin
main appendage of skin
DAY #2
Where does the digestive tract start & end?
Where does the digestive tract start & end?
mout (teeth) - anus
What is the purpose of saliva?
What is the purpose of saliva?
helps break down food
What is the function of the epiglottis?
What is the function of the epiglottis?
closes the esophagus
Where do fetal pigs receive nourishment from their mother?
Where do fetal pigs receive nourishment from their mother?
umbilical cord
What do fetal pigs drink so that their stomachs wont be full?
What do fetal pigs drink so that their stomachs wont be full?
amniotic fluid
How many lobes are their to the pigs liver?
How many lobes are their to the pigs liver?
4, liver functions to filter toxins
gall bladder
gall bladder
DAY #3
stores bile
pancreas
pancreas
produces enzymes
What are the membranes that attach the internal organs to the body wall?
What are animals like pigs called that have multiple stomachs?
What are the fringes inside the stomach?
Where is esophageal area located?
meninges
polygastric
rugae, allow stomach to expand
Day #4
esophagus and stomach
Where is the cardiac area located?
Where is the cardiac area located?
esophagus and stomach
Where is the pyloric area located?
Where is the pyloric area located?
stomach and small intestine
duodenum
duodenum
first part of intestine, absorbs nutrients
jejunum
jejunum
DAY #5
second part of intestine
ileum
ileum
third part of intestine
sphincter
sphincter
divide to spaces and prevents things from moving backwards
chyme
chyme
soupy, digestive material that leaves the stomach
colon
colon
another name for the large intestine, reabsorbs water and ions
middle portion
middle portion
straight, terminal part of the large intestine
DAY #3
What cavity are the lungs found in?
What cavity are the lungs found in?
thoratic cavity
Name the tissue that covers and protects the lungs.
Name the tissue that covers and protects the lungs.
pleura
Where is the epiglottis & what is its function?
Where is the epiglottis & what is its function?
Located at the opening to the Larynx to prevent food from entering the respiratory passageways.
DAY #6
Where is the pharynx located?
back of nasal cavity
Give the function of the larynx.
Give the function of the larynx.
voice box
What keeps the trachea from collapsing?
What keeps the trachea from collapsing?
cartilage rings.
Where is the diaphragm?
Where is the diaphragm?
splits the abdomen and thoratic cavity
Does the diaphragm function in the fetus?
Does the diaphragm function in the fetus?
No, it gets oxygen from their mother in the umbilical cord
Name the tubes that enter the lungs
Name the tubes that enter the lungs
bronchial tubes
Name the smaller tubes that branch from these
Name the smaller tubes that branch from these
bronchioles
What are the air sacs for gas exchange?
What are the air sacs for gas exchange?
alveoli
Why do the lungs appear collapsed in the fetus?
fetal pig dissection and lab practical
fetal pig dissection and lab practical
FETAL PIG LAB PRACTICAL.ppt
they aren't ready yet
Day #4
What is the pericardium?
What is the pericardium?
fluid filled sac
What difference between the atria and the ventricles can you feel with your fingers?
What difference between the atria and the ventricles can you feel with your fingers?
FETAL PIG LAB PRACTICAL.ppt
ventricles are thicker, atria are smoother
Into what heart chamber does the superior and posterior vena cava open?
STUDY THE ABOVE SLIDES FOR THE TEST!!!!
right atrium
From what chamber does the aorta arise?
From what chamber does the aorta arise?
left ventricle
To what structure do the pulmonary arteries lead?
To what structure do the pulmonary arteries lead?
lungs
Why does the ductus arterioles close off at the time of birth?
Why does the ductus arterioles close off at the time of birth?
blood needs to travel to lungs to give
What is the function of coronary circulation?
What is the function of coronary circulation?
nourishes tissues of the heart
What results when coronary circulation is prevented in humans?
What results when coronary circulation is prevented in humans?
heart attacks
Describe the interior of the lungs.
full of small tubes surrounded by spongy material
In what 2 systems does the epiglottis function?
In what 2 systems does the epiglottis function?
digestive and respiration
DAY #5
In order, name the structures through which urine passes from the kidneys.
In order, name the structures through which urine passes from the kidneys.
kidneys, ureters, urinary bladder, urethra, urogenital openings
In order, name the structures through which sperm passes from the testes.
In order, name the structures through which sperm passes from the testes.
testes, epididymis, sperm ducts, urethra
In order, name the structures through which an egg would pass from the ovary.
In order, name the structures through which an egg would pass from the ovary.
ovary, fallopian tubes, uterus, cervix, vagina
DAY #6
Name the protective membranes covering the brain.
Name the protective membranes covering the brain.
meninges
What does the olfactory lobe at the front of the brain control?
What does the olfactory lobe at the front of the brain control?
sense of smell
What part of the skeletal system protects the brain?
What part of the skeletal system protects the brain?
skull
Name the largest area of the brain.
Name the largest area of the brain.
cerebrum
How many hemispheres does this lobe have?
How many hemispheres does this lobe have?
4
cerebrum
cerebrum
used for thinking, willed movements, memory, problem solving, and language
cerebellum
cerebellum
coordination, posture, body position
medulla oblongata
integration, regulation in cardiac, respiratory center
spinal cord
spinal cord
sensory information
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